CN213467015U - Negative pressure vibration screening equipment - Google Patents
Negative pressure vibration screening equipment Download PDFInfo
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- CN213467015U CN213467015U CN202021758888.2U CN202021758888U CN213467015U CN 213467015 U CN213467015 U CN 213467015U CN 202021758888 U CN202021758888 U CN 202021758888U CN 213467015 U CN213467015 U CN 213467015U
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Abstract
The utility model discloses a negative pressure vibration screening device, which comprises a base and a screen box assembly arranged on the base; a gas-liquid separation device is arranged on one side of the base, and a liquid inlet and an air extraction opening are formed in the gas-liquid separation device; a vacuum disc is arranged below one or two screens close to the discharge end on the screen box assembly, and an outlet of the vacuum disc is connected to a liquid inlet of the gas-liquid separation device through a connecting pipe; and the air exhaust port of the gas-liquid separation device is connected with an air exhaust device through a vacuum tube. The utility model discloses well adoption air exhaust device and vacuum plate further accelerate the separation of the drilling fluid in the drill chip, the cooperation is inseparable between vacuum plate and the screen cloth, has guaranteed equipment vacuum pumping system's vacuum well, can effectively improve equipment's separation treatment efficiency.
Description
Technical Field
The utility model relates to a vibrating screen divides processing technology field, in particular to negative pressure vibrating screen divides equipment for drilling fluid recovery processing.
Background
The existing solid phase control technology for petroleum drilling generally adopts vibration screening to remove most drill cuttings carried out from underground returned drilling fluid, the volume content of the drilling fluid in the separated drill cuttings is as high as 60-80%, the loss of the drilling fluid is large, the subsequent environment-friendly treatment workload of the drill cuttings is large, and the treatment cost is high. In order to reduce the liquid content of the separated drill cuttings, various companies in the world have conducted research on related technologies, such as drilling fluid solid-liquid separation equipment based on a vacuum filtration continuous circulation screen, drilling fluid separation devices based on a pulse vacuum, and vibratory screening devices based on a pulsating negative pressure. The vibrating screen based on the pulsating negative pressure generally adopts a vacuum pump to suck out the drilling fluid in the screen, and then carries out gas-liquid separation treatment on the drilling fluid so as to realize the separation between liquid and gas; the treatment efficiency of the drilling fluid and the gas-liquid separation treatment method in the vibration separation device adopting the negative pressure method have important influence on the treatment effect of the device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the above-mentioned technical problem who exists among the prior art, provide a negative pressure vibration screening equipment.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a negative pressure vibration screening device comprises a base and a screen box assembly arranged on the base;
a gas-liquid separation device is arranged on one side of the base, and a liquid inlet and an air extraction opening are formed in the gas-liquid separation device;
a vacuum disc is arranged below one or two screens close to the discharge end on the screen box assembly, and an outlet of the vacuum disc is connected to a liquid inlet of the gas-liquid separation device through a connecting pipe;
and the air exhaust port of the gas-liquid separation device is connected with an air exhaust device through a vacuum tube.
In the above technical scheme, further, be provided with the installing support on the base, air exhaust device sets up on the installing support, the installing support is with base complex portal frame structure.
In the above technical scheme, further, the screen cloth is arranged on the support frame, and the vacuum disc is arranged between the screen cloth and the support frame.
In the above technical scheme, further, a sealing strip is arranged between the support frame and the vacuum disc.
In the above technical solution, further, the gas-liquid separation device includes a separation tank and a treatment tank;
the separation tank comprises a closed separation cavity, and the liquid inlet and the air extraction opening are arranged on the separation tank and are respectively communicated with the separation cavity;
the treatment tank comprises an outer cylinder with an opening at the lower end, an inner cylinder arranged in the outer cylinder and close to one end of the opening, and an intermediate cylinder arranged between the outer cylinder and the inner cylinder, wherein the upper end of the intermediate cylinder is connected to the inner wall of the outer cylinder and divides the interior of the outer cylinder into an upper cavity and a lower cavity;
and a connecting cylinder is arranged on the separating tank, one end of the connecting cylinder is communicated with the separating cavity, and the other end of the connecting cylinder is communicated with the upper cavity of the outer cylinder.
Among the above-mentioned technical scheme, furtherly, the separation cavity is located the upper portion of knockout drum, and the separation cavity bottom surface is the inclined plane towards the one side direction slope that sets up the connecting cylinder, the connecting cylinder sets up the lowest department at inclined plane.
Among the above-mentioned technical scheme, furtherly, the inner tube bottom is provided with the discharge gate, discharge gate department is provided with the ooff valve, the ooff valve is including setting up disk seat on the discharge gate and the valve body of setting on the disk seat, the valve body is connected at valve rod tip, the valve rod sets up in the urceolus, and the valve rod other end stretches out threaded connection between urceolus outside and the urceolus.
In the above technical scheme, further, the bottom of the inner cylinder is in an inverted cone-shaped cylinder structure.
Among the above-mentioned technical scheme, further, be provided with two inlets on the knockout drum, two inlets respectively with the exit linkage of two vacuum discs.
Compared with the prior art, the utility model discloses beneficial effect who has:
1) the utility model discloses well adoption air exhaust device and vacuum plate further accelerate the separation of the drilling fluid in the drill chip, the cooperation is inseparable between vacuum plate and the screen cloth, has guaranteed equipment vacuum pumping system's vacuum well, can effectively improve equipment's separation treatment efficiency.
2) The equipment layout is reasonable, and the air exhaust device is arranged above the screen through the mounting bracket, so that the equipment has good integrity.
3) The gas-liquid separation device adopted in the equipment can play a good gas-liquid separation role on the air extraction device in the using process, the drilling fluid can smoothly enter the treatment tank for treatment, and the separation and recovery treatment of the drilling fluid are facilitated.
Drawings
Figure 1 is the utility model discloses a negative pressure vibration screening equipment structure front view.
Figure 2 is the utility model discloses a negative pressure vibration screening equipment structure left side view.
Figure 3 is the utility model discloses sieve case assembly structure sketch map in negative pressure vibration screening equipment.
Fig. 4 is a schematic view of the connection structure of the middle screen and the vacuum plate of the present invention.
Fig. 5 is a schematic structural view of the gas-liquid separation device of the present invention.
Fig. 6 is a top view of the gas-liquid separator of the present invention.
In the figure: 100. a base 101 and a mounting bracket;
200. a screen box assembly 201, a screen mesh 202, a support frame 203 and a sealing strip;
300. a gas-liquid separation device 301, a separation tank 3101, a separation cavity 3102, a connecting cylinder 3103, a separation cavity bottom 3104, a liquid inlet 3105 and an air extraction opening; 302. the device comprises a processing tank, 3201, an outer cylinder, 3202, a middle cylinder, 3203, an inner cylinder, 3204, an upper cavity, 3205, a lower cavity, 3206, a discharge port, 3207, a valve seat, 3208, a valve body, 3209, a valve rod, 3210, a threaded sleeve, 3211, a hand wheel, 3213 and an end cover;
400. an air extraction device;
501. vacuum plate, 502, connecting pipe, 503, vacuum tube.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the negative pressure vibrating screening device in this embodiment includes a base 100 and a screen box assembly 200 disposed on the base, where the screen box assembly 200 is disposed on the base 100 through an elastic member, and a vibrating motor drives the screen box assembly to vibrate on the base, so as to implement a screening operation.
The gas-liquid separation device 300 is arranged on one side of the base 100, and the gas-liquid separation device 300 is provided with a liquid inlet 3104 and an air extraction opening 3105.
As shown in fig. 3 and 4, a vacuum tray 501 is arranged on the sieve box assembly 200 below the two screens 201 near the discharge end, and the outlet of the vacuum tray 501 is connected to a liquid inlet 3104 of the gas-liquid separation device 300 through a connecting pipe 502; the screen 201 is disposed on the support frame 202, and the vacuum pan 501 is disposed between the screen 201 and the support frame 202. A sealing strip 203 is arranged between the supporting frame 202 and the vacuum disc 501, and the vacuum disc can be well sealed through the structure, so that vacuum is formed in the vacuum disc, and the separation operation of drilling fluid on the screen is realized.
The extraction opening 3105 of the gas-liquid separation device 300 is connected with the extraction device 400 through a vacuum pipe 503; the air extractor 400 comprises an oil mist separator and a fan, and is used for generating negative pressure in the vacuum disc to accelerate the separation of drilling fluid.
Be provided with installing support 101 on the base 100, air exhaust device 400 sets up on installing support 101, installing support 101 is the portal frame structure with base 100 complex, makes equipment have fine wholeness.
As shown in fig. 5 and 6, the gas-liquid separation apparatus in the present embodiment includes a separation tank 301 and a treatment tank 302, the separation tank 301 is disposed side by side with the treatment tank 302, and the treatment tank 301 is disposed on the separation tank 301 side.
The separation tank 301 comprises a closed separation cavity 3101, the liquid inlet 3104 and the air suction port 105 are arranged on the separation tank 301, and the liquid inlet 3104 and the air suction port 3105 are respectively communicated with the separation cavity 3101. The separation tank is connected to the screen through a liquid inlet, and the drilling fluid enters the separation tank 301 through the liquid inlet; and the air exhaust port of the separation tank is connected with an air exhaust device, and negative pressure is formed in the separation tank to suck the drilling fluid on the screen into the separation tank.
In this embodiment, two liquid inlets on the separation tank 301 are arranged side by side at intervals on one side of the separation tank 301 and are respectively connected with outlets of the two vacuum discs; the air suction port 3105 is arranged at the top of the separation tank 301, and the two liquid inlets 3104 are symmetrically arranged at two sides of the axis of the air suction port 3105.
The processing tank 302 includes lower extreme open-ended urceolus 3201, sets up and is close to the inner tube 3203 of opening one end and sets up the middle section of thick bamboo 3202 between urceolus and inner tube in the urceolus, middle section of thick bamboo 3202 upper end is connected on the urceolus inner wall, divides into epicoele 3204 and cavity 3205 with the urceolus is inside, middle section of thick bamboo 3202 lower extreme opening and stretch into inside the inner tube 3203, inner tube 3203 upper end opening sets up in the cavity 3205 of urceolus, be provided with certain interval between inner tube 3203 and the urceolus 3201.
The separation tank 302 is provided with a connecting tube 3102, one end of the connecting tube 3102 is communicated with the separation chamber 3101, and the other end is communicated with an upper chamber 3204 of the outer cylinder. In this embodiment, the separation chamber 3101 is located at the upper part of the separation tank, the bottom surface 3103 of the separation chamber is an inclined surface inclined toward the side where the connection cylinder is provided, and the connection cylinder 3102 is provided at the lowest part of the inclined surface. After the drilling fluid enters the separation tank, the liquid flows into the treatment tank along the bottom surface of the separation cavity through the connecting cylinder for subsequent treatment.
Preferably, a discharge port 3206 is provided at the bottom of the inner cylinder 3203, a switching valve is provided at the discharge port 3206, the switching valve includes a valve seat 3207 provided on the discharge port 3206 and a valve body 3208 provided on the valve seat, the valve body 3208 is connected to an end of a valve rod 3209, the valve rod 3209 is provided in the outer cylinder 3201, and the other end of the valve rod 3209 extends out of the outer cylinder and is in threaded connection with the outer cylinder 3201. A discharge port at the bottom of the inner cylinder is provided with a switch valve, and when the solid-phase precipitate of the inner cylinder needs to be cleaned, the switch valve is opened so as to clean the inner cylinder conveniently. Preferably, the bottom of the inner barrel 3203 is of an inverted cone-shaped barrel structure, and the bottom of the inner barrel is of an inclined surface structure, so that solid-phase precipitates can be further conveniently cleaned.
A threaded sleeve 3210 is arranged on an end cover 3213 of the outer cylinder 3201, the valve rod 3209 is arranged in the threaded sleeve 3210 and is in threaded connection with the threaded sleeve, and a hand wheel 3211 is arranged at the other end of the valve rod 3209 so as to facilitate connection and operation of the valve rod.
Preferably, the upper part of the middle cylinder 3202 is in an inverted cone structure, the lower part of the middle cylinder 3202 is in a straight cylinder structure, the upper part of the middle cylinder is matched with the inner wall of the outer cylinder and is fixedly and hermetically connected with the inner wall of the outer cylinder, and the lower part of the middle cylinder extends into the inner cylinder, so that an overflow structure is formed between the middle cylinder and the inner cylinder, and a closed cavity is formed in an upper cavity.
The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.
Claims (9)
1. A negative pressure vibration screening device comprises a base and a screen box assembly arranged on the base; the method is characterized in that:
a gas-liquid separation device is arranged on one side of the base, and a liquid inlet and an air extraction opening are formed in the gas-liquid separation device;
a vacuum disc is arranged below one or two screens close to the discharge end on the screen box assembly, and an outlet of the vacuum disc is connected to a liquid inlet of the gas-liquid separation device through a connecting pipe;
and the air exhaust port of the gas-liquid separation device is connected with an air exhaust device through a vacuum tube.
2. The negative pressure vibratory screening apparatus of claim 1, wherein: the base is provided with a mounting bracket, the air exhaust device is arranged on the mounting bracket, and the mounting bracket is of a portal frame structure matched with the base.
3. The negative pressure vibratory screening apparatus of claim 1, wherein: the screen cloth sets up on the support frame, the vacuum disk sets up between screen cloth and support frame.
4. The negative pressure vibratory screening apparatus of claim 3, wherein: and a sealing strip is arranged between the supporting frame and the vacuum disc.
5. The negative pressure vibratory screening apparatus of claim 1, wherein: the gas-liquid separation device comprises a separation tank and a treatment tank;
the separation tank comprises a closed separation cavity, and the liquid inlet and the air extraction opening are arranged on the separation tank and are respectively communicated with the separation cavity;
the treatment tank comprises an outer cylinder with an opening at the lower end, an inner cylinder arranged in the outer cylinder and close to one end of the opening, and an intermediate cylinder arranged between the outer cylinder and the inner cylinder, wherein the upper end of the intermediate cylinder is connected to the inner wall of the outer cylinder and divides the interior of the outer cylinder into an upper cavity and a lower cavity;
and a connecting cylinder is arranged on the separating tank, one end of the connecting cylinder is communicated with the separating cavity, and the other end of the connecting cylinder is communicated with the upper cavity of the outer cylinder.
6. The negative pressure vibratory screening apparatus of claim 5, wherein: the separation cavity is located the upper portion of knockout drum, and the separation cavity bottom surface is the inclined plane towards the one side direction slope that sets up the connecting cylinder, the connecting cylinder sets up the lowest department at the inclined plane that inclines.
7. The negative pressure vibratory screening apparatus of claim 5, wherein: the inner tube bottom is provided with the discharge gate, discharge gate department is provided with the ooff valve, the ooff valve is including setting up the disk seat on the discharge gate and setting up the valve body on the disk seat, the valve body is connected at valve rod tip, the valve rod sets up in the urceolus, and the valve rod other end stretches out threaded connection between urceolus outside and the urceolus.
8. The negative pressure vibratory screening apparatus of claim 7, wherein: the bottom of the inner cylinder is of an inverted cone-shaped cylinder structure.
9. The negative pressure vibratory screening apparatus of claim 5, wherein: the separation tank is provided with two liquid inlets which are respectively connected with outlets of the two vacuum discs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021758888.2U CN213467015U (en) | 2020-08-20 | 2020-08-20 | Negative pressure vibration screening equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021758888.2U CN213467015U (en) | 2020-08-20 | 2020-08-20 | Negative pressure vibration screening equipment |
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| Publication Number | Publication Date |
|---|---|
| CN213467015U true CN213467015U (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021758888.2U Active CN213467015U (en) | 2020-08-20 | 2020-08-20 | Negative pressure vibration screening equipment |
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| CN (1) | CN213467015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550705A (en) * | 2021-09-23 | 2021-10-26 | 西南石油大学 | Pulse negative pressure well drilling vibrating screen |
| CN115707851A (en) * | 2021-08-19 | 2023-02-21 | 中国石油天然气集团有限公司 | Negative pressure drilling fluid rock debris separator |
| CN115707851B (en) * | 2021-08-19 | 2024-05-28 | 中国石油天然气集团有限公司 | Negative pressure drilling fluid rock debris separator |
-
2020
- 2020-08-20 CN CN202021758888.2U patent/CN213467015U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115707851A (en) * | 2021-08-19 | 2023-02-21 | 中国石油天然气集团有限公司 | Negative pressure drilling fluid rock debris separator |
| CN115707851B (en) * | 2021-08-19 | 2024-05-28 | 中国石油天然气集团有限公司 | Negative pressure drilling fluid rock debris separator |
| CN113550705A (en) * | 2021-09-23 | 2021-10-26 | 西南石油大学 | Pulse negative pressure well drilling vibrating screen |
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Effective date of registration: 20211123 Address after: 618304 group 2, Gaocao village, Xiaohan Town, Guanghan City, Deyang City, Sichuan Province Patentee after: GUANGHAN ALISHENGMU PETROLEUM EQUIPMENT CO.,LTD. Patentee after: Zhang Jiguo Address before: 618304 group 2, Gaocao village, Xiaohan Town, Guanghan City, Deyang City, Sichuan Province Patentee before: GUANGHAN ALISHENGMU PETROLEUM EQUIPMENT CO.,LTD. |